Electric brake system and operating method thereof
AssigneeMando Corporation
InventorsHyojin JEONG, Seong Ho CHOI
Life of this patent
Estimating the term…
Abstract
Disclosed herein are an electric brake system and an operating method thereof. The electric brake system includes a master cylinder to discharge a pressurized medium in accordance with displacement of a brake pedal, a simulation device to provide a driver with a pedal feeling, a hydraulic pressure supply device to generate a hydraulic pressure by operating a hydraulic piston in accordance with an electrical signal output in response to the displacement of the brake pedal, and a hydraulic control unit to control a hydraulic pressure of the pressurized medium supplied to each wheel cylinder. The electric brake system may perform a normal mode, an abnormal mode, and an inspection mode.
Claims17
An electric brake system comprising:
- a hydraulic pressure supply device configured to generate a hydraulic pressure by operating a hydraulic piston by an electrical signal output in response to displacement of a brake pedal and comprising a first pressure chamber formed at one side of the hydraulic piston movably accommodated in a cylinder block and a second pressure chamber formed at the other side of the hydraulic piston;
- and
- a hydraulic control unit comprising a first hydraulic circuit configured to control a hydraulic pressure transmitted to two wheel cylinders and a second hydraulic circuit configured to control a hydraulic pressure transmitted to the other two wheel cylinders,
- wherein the hydraulic control unit comprises a first hydraulic flow path communicating with the first pressure chamber, second and third hydraulic flow paths branched out from the first hydraulic flow path and respectively connected to the first and second hydraulic circuits, a fourth hydraulic flow path communicating with the second pressure chamber, fifth and sixth hydraulic flow paths branched out from the fourth hydraulic flow path and respectively connected to the first and second hydraulic circuits, and a seventh hydraulic flow path connecting the first hydraulic flow path with the third hydraulic flow path.
Dependencies are inferred from the claim text.